Bobbin-latch.



' vNo. 634,662. Patented om. 10,. 1699, 6 H. c.. FowLEn.-

BOBBIN LATCH. l

[Application filed June 22, 1899.)

(No Modei.)

Illll ment ofa retaining-spring 9, which latter c UNITED STATES` PATENT OFFICE.

ONE-HALF To EDWINC. I'IoLT, oF

WILMINGTON, NORTH CAROLINA.

Y-'BoBBlN/-LATci-l.

sPEcIFIcATIoN Y Application filed June 22,1899.'

forming part of 'Lettere Patent No. 634,662, dated oeteber 1o, 1899.

Serial No. 721,480. [No model.)

To all whom, zl'; may concern:

Be it known that l, HENRY CLAY FOWLER, a citizen of theUnited States, residing at Burlington, in the county of Alamance and State of North. Carolina, have invented a new and useful Bobbin-Latch, of which the following is a specification.

This invention relates to. bobbin-latches for shuttles; and it has for its object to provide a construction in which a pivoted spindle is adapted to receive a bobbin and in which when said spindle is moved to lie in its operative position in the shuttle the bohbin Will be held against accidental displacement-from 4the spindle.

In the drawings forming a portion of this specification, and in which like numerals of reference designate correspondingl parts in the several views, Figure 1 is a side elevation of a shuttle partially broken away to show the location and arrangement of the bobbin and` its latch. Fig. 2 is a side elevation of one end of the shuttle, partially in section, and also showing the bobbin and adjacent portions, some in elevation and some in section. Fig. 3 is a section on line 3 3 of Fig. 2 with the bobbin removed and showing the position of the'elenients of the latch when the latter is closed and the bobbin is ready to be rocked' into the shuttle, the central block beingshown in elevation. Fig. 4 is a view similar to Fig. 3, showing the latch in its disengaged position. Fig. 5 is a rear elevation of the latchplate.

Referring now to the drawings, 5 represents a shuttle of common form having alongitudinal slot therein, in which is pivoted a tongue 6 through the medium of a pin 7 passed through the enlarged head 8 of the tongue. This head at the adjacent extremity of the tongue has flattened faces adapted for engagef when engaging corresponding faces of the head hold the tongue in either an extended position or Within the inclosure of the shuttle It is of course understood that the tongue is pivoted at one end otthe slot of the shuttle in the usual manner.

ameter than the tongue and is angular in cross-section, and the tongue is set inwardly from the edge of the head, resulting in the formation of a shoulder 10, extending completely around the tongue, and resting upon this shoulder is an eccentrically-mounted .cylindrical block 11,V adapted to receive a bobbin 12 of the `usual construction, the lower end of which bohbin rests upon the upper radially-serrated face of an annular flange 13 adjacent the lower end of the block l1, the bobloin when in this position being disposed at a slight angle to the tongue 6, as will be readily appreciated.

In order to hold the bobbin upon the tongue and to allow the removal thereof, the eccentric block 11, .which is rotatable upon the tongue, is adapted in its rotation to move the base of the bobbin toward or away from a latch-plate 15, riveted,as shown at 21,0r other- Wise secured to the head 8 and extending up- Wardly therefrom and parallel with the block 11, said upwardly-extending portion having at its upper edge an in Wardlydirected flange 16, Which is arc-shaped to conform to the contour ofthe loobbin and to enter an annular groove 17 therein. The extension of thelatchplate 15 is arc-shaped in cross-section,as shown in Fig. 5. The arrangement and proportions of these elements are such that when the bob bin is rotated with the block 11 its groove 17 the ange 16, a tangential lug 18 upon the ange 13 being positioned to engage the adjacent edge of the extension of the plate 15 to act as a stop for the rotation of the block 11 when the block is in a position to e ngage the flange 16 with the groove 17, the length of said lug being such that when the tongue lies in the slot of the shuttle the Wall of the slot will limit out- Ward movement of said lug and consequent rotation of the block 11 and the parts carried thereby. Thus when the tongue isin the position shown in Fig. 2 of the drawings the therefrom; but after the tongue is rotated to the position shown in Fig. 3 and the parts arethen moved upon the pivot 7 to lie Within the slot of the shuttle7 as shown in Fig. 1, it

The head 8 of the tongue has a greater diwill he impossible to rotate the block 11 suf will be moved into or out of engagement With bobbin may be readily applied to or removed IOC) liciently far to disengage the groove lof the bobbin from the flange 1G.

` As shown in Fig. 2 of the drawings, a collar 2O upon the tongue 6 prevents displacement of the block l1 longitudinally of the tongue, and it will of course be understood that in practice various modications may be einployed and that the specific construction and arrangement may be varied Without departing from the spirit of the invention.

Having thus described the invention, what is claimed isl. The combination with a shuttle and the tongue thereof, of a latch-plate connected with the tongue, and a block pivoted upon the tongueand adapted to receive a bobbin and rotate it into engagement with the latch plate.

2. The combination with a shuttle and the tongue thereof, of a latchplate connected with the tongue, and a block eccentrically pivoted upon the tongue and adapted to receive a bobbin and move it into engagement with the latch-plate.

3. Thefcombination with a shuttle and a tongue thereof, of a latch -plate connected with the tongue and having a projection,.and a block pivoted eccentrically of the tongue and adapted .to receive a bobbin and move it' into engagement with the projection of the latch-plate.

et. The combination with a shuttle and a tongue thereof, of a latchplate connected with the tongue, and a block eccentrically pivoted upon the tongue and having a serrated flange, said block being adapted to receive a bobbin in engagement with said serrations and move it into engagement with the latch-plate.

5. rlhe combination with a slotted shuttle and a tongue mounted in the slot thereof and adapted to receive a bobbin of a latch connected with the tongue adapted to engage and hold the bobbin upon the/tongue, and means en fa, ,0fing the Wall of said slot for preventing disengagement of the latch When the bobbin is in the slot.

6. The combination With a shuttle having a slot therein, of a tongue pivo'ted Within the slot, a latch-plate connected With the tongue, a4 block mounted upon the tongue and adapt- Ved to receive a bobbin aud move it into engagement with the latch-plate, and means movable into and out of said slot to engage a wall thereof when in the Slot and prevent rotation of the block.

7. The combination with a shuttle having a slot therein and a tongue pivoted in the slot, of a block eccentrically mounted upon the tongue and adapted to receive a bobbin and move it, a latch-plate adapted to engage the bobbin when moved by said block, and a projection upon the block movable into and out of the slotof the bobbin to engage a Wall thereof when in the slot and prevent movement of the bobbin from the latch-plate.

In testimony that I claim the foregoing as myown I have hereto affixed my Signat ure in the presence of two witnesses.

HENRY CLAY FOWLER.

iVitnesses: A

J. A. HAMILTON, J. A. BARNWELL. 

